Expose API notifying about loaded CKEDITOR namespace

CHANGELOG.md

@@ -5,6 +5,7 @@
 New Features:
 
 * [#125](https://github.com/ckeditor/ckeditor4-react/issues/125): Added `name` property for easier referencing editor instances with [`CKEDITOR.instances`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR.html#property-instances). Thanks to [Julien Castelain](https://github.com/julien)!
+* [#129](https://github.com/ckeditor/ckeditor4-react/issues/129): Added `onNamespaceLoaded` property executed when [`CKEDITOR` namespace](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR.html) is loaded, which can be used for its easier customization.
 
 ## ckeditor4-react 1.2.1
 

package.json

@@ -57,6 +57,7 @@
 		"babel-loader": "^8.0.4",
 		"chai": "^4.2.0",
 		"ckeditor4": "^4.15.1",
+		"ckeditor4-integrations-common": "^0.1.0",
 		"core-js": "^3.6.4",
 		"enzyme": "^3.7.0",
 		"enzyme-adapter-react-16": "^1.6.0",

samples/main.js

@@ -1,7 +1,7 @@
-var { useState } = React;
-var { HashRouter, Switch, Route, Link } = ReactRouterDOM;
+const { useState } = React;
+const { HashRouter, Switch, Route, Link } = ReactRouterDOM;
 
-var startingData = '<p>This is a CKEditor 4 WYSIWYG editor instance created by ️⚛️ React.</p>';
+const startingData = '<p>This is a CKEditor 4 WYSIWYG editor instance created by ️⚛️ React.</p>';
 
 ReactDOM.render(
 	<HashRouter>
@@ -13,7 +13,7 @@ ReactDOM.render(
 
 function Navigation() {
 	return (
-		<ul class='routes'>
+		<ul className='routes'>
 			<li>
 				<Link to="/">Editor Types</Link>
 				<Link to="/events">Component Events</Link>
@@ -40,7 +40,7 @@ function Router() {
 }
 
 function EditorTypes() {
-	var [ readOnly, setReadOnly ] = useState( false );
+	const [ readOnly, setReadOnly ] = useState( false );
 
 	return (
 		<main>
@@ -51,6 +51,7 @@ function EditorTypes() {
 					type="classic"
 					data={ startingData }
 					readOnly={ readOnly }
+					onNamespaceLoaded={ onNamespaceLoaded }
 				/>
 			</section>
 			<section>
@@ -59,6 +60,7 @@ function EditorTypes() {
 					type="inline"
 					data={ startingData }
 					readOnly={ readOnly }
+					onNamespaceLoaded={ onNamespaceLoaded }
 				/>
 			</section>
 
@@ -77,7 +79,7 @@ function EditorTypes() {
 }
 
 function EditorEvents() {
-	var [ events, setEvents ] = useState( [] );
+	const [ events, setEvents ] = useState( [] );
 
 	return (
 		<main>
@@ -90,6 +92,7 @@ function EditorEvents() {
 				onBlur={ logEvent }
 				onChange={ logEvent }
 				onSelectionChange={ logEvent }
+				onNamespaceLoaded={ onNamespaceLoaded }
 			/>
 			<h3>Events Log</h3>
 			<p><small>To check additional details about every event, consult the console in the browser developer tools.</small></p>
@@ -116,7 +119,7 @@ function EditorEvents() {
 	}
 }
 
-function EventLog ( { stream } ) {
+function EventLog( { stream } ) {
 	return (
 		<div className="event-log">
 			<ul>
@@ -135,8 +138,8 @@ function EventLog ( { stream } ) {
 }
 
 function EditorTwoWayDataBinding() {
-	var [ data, setData ] = useState( startingData ),
-		[ sourceEditorFocused, setSourceEditorFocus ] = useState( false );
+	const [ data, setData ] = useState( startingData );
+	const [ sourceEditorFocused, setSourceEditorFocus ] = useState( false );
 
 	return (
 		<div>
@@ -159,6 +162,7 @@ function EditorTwoWayDataBinding() {
 				<CKEditor
 					data={ data }
 					onChange={ ( { editor } ) => setData( editor.getData() ) }
+					onNamespaceLoaded={ onNamespaceLoaded }
 				/>
 
 				<EditorPreview data={ data } />
@@ -168,9 +172,9 @@ function EditorTwoWayDataBinding() {
 }
 
 function SourceEditor( { data, textHandler, focused, setFocus } ) {
-	var textareaValue = {},
-		// Updating editor on every keystroke may freeze a browser.
-		onChange = debounce( textHandler, 300 );
+	const textareaValue = {};
+	// Updating editor on every keystroke may freeze a browser.
+	const onChange = debounce( textHandler, 300 );
 
 	// Value should be only updated if source editor is not focused.
 	// Otherwise it will interrupt typing with new data set.
@@ -203,10 +207,10 @@ function EditorPreview( { data } ) {
 }
 
 function debounce( fn, wait ) {
-	var timeout;
+	let timeout;
 
 	return function( ...args ) {
-		var context = this;
+		const context = this;
 
 		clearTimeout( timeout );
 
@@ -215,3 +219,7 @@ function debounce( fn, wait ) {
 		}, wait );
 	};
 }
+
+function onNamespaceLoaded( namespace ) {
+	console.log( 'CKEDITOR version: ', namespace.version );
+}

src/ckeditor.jsx

@@ -5,7 +5,7 @@
 
 import React from 'react';
 import PropTypes from 'prop-types';
-import getEditorNamespace from './getEditorNamespace.js';
+import { getEditorNamespace } from 'ckeditor4-integrations-common';
 
 class CKEditor extends React.Component {
 	constructor( props ) {
@@ -52,10 +52,10 @@ class CKEditor extends React.Component {
 	}
 
 	_initEditor() {
-		const { config, readOnly, type, onBeforeLoad, style, data } = this.props;
+		const { config, readOnly, type, onBeforeLoad, onNamespaceLoaded, style, data } = this.props;
 		config.readOnly = readOnly;
 
-		getEditorNamespace( CKEditor.editorUrl ).then( CKEDITOR => {
+		getEditorNamespace( CKEditor.editorUrl, onNamespaceLoaded ).then( CKEDITOR => {
 			// (#94)
 			if ( this._destroyed ) {
 				return;
@@ -139,7 +139,8 @@ CKEditor.propTypes = {
 	name: PropTypes.string,
 	style: PropTypes.object,
 	readOnly: PropTypes.bool,
-	onBeforeLoad: PropTypes.func
+	onBeforeLoad: PropTypes.func,
+	onNamespaceLoaded: PropTypes.func
 };
 
 CKEditor.defaultProps = {

tests/browser/ckeditor.jsx

@@ -11,16 +11,14 @@ import { configure, mount } from 'enzyme';
 import Adapter from 'enzyme-adapter-react-16';
 
 import CKEditor from '../../src/ckeditor.jsx';
-import getEditorNamespace from '../../src/getEditorNamespace.js';
+import { getEditorNamespace } from 'ckeditor4-integrations-common';
 
 const { expect, use } = chai;
 use( sinonChai );
 configure( { adapter: new Adapter() } );
 
 let components = [];
 
-CKEditor.editorUrl = 'https://cdn.ckeditor.com/4.13.1/standard-all/ckeditor.js';
-
 describe( 'CKEditor Component', () => {
 	let sandbox;
 
@@ -495,66 +493,32 @@ describe( 'CKEditor Component', () => {
 } );
 
 describe( 'getEditorNamespace', () => {
-	// Don't need any files – Data URLs FTW!
-	const fakeScript = 'data:text/javascript;base64,d2luZG93LkNLRURJVE9SID0ge307';
-
 	beforeEach( () => {
 		delete window.CKEDITOR;
 	} );
 
-	it( 'is a function', () => {
-		expect( getEditorNamespace ).to.be.a( 'function' );
-	} );
-
-	it( 'requires non-empty string as parameter', () => {
-		const invalid = [
-			1,
-			{},
-			[],
-			null,
-			undefined,
-			''
-		];
-
-		invalid.forEach( param => {
-			expect( () => {
-				getEditorNamespace( param );
-			} ).to.throw( TypeError, 'CKEditor URL must be a non-empty string.' );
-		} );
-	} );
-
-	it( 'returns promise even if namespace is present', () => {
-		window.CKEDITOR = {};
+	it( 'called once for multiply editor instances', () => {
+		const spy = sinon.spy();
 
-		const namespacePromise = getEditorNamespace( 'test' );
-		expect( namespacePromise ).to.be.an.instanceOf( Promise );
-
-		return namespacePromise.then( namespace => {
-			expect( namespace ).to.equal( window.CKEDITOR );
-		} );
-	} );
-
-	it( 'load script and resolves with loaded namespace', () => {
-		return getEditorNamespace( fakeScript ).then( namespace => {
-			expect( namespace ).to.equal( window.CKEDITOR );
-		} );
-	} );
-
-	it( 'returns the same promise', () => {
-		const promise1 = getEditorNamespace( fakeScript );
-		const promise2 = getEditorNamespace( fakeScript );
+		const editor1 = createEditor( { name: 'editor-name-one', onNamespaceLoaded: spy } );
+		const editor2 = createEditor( { name: 'editor-name-two', onNamespaceLoaded: spy } );
+		const editor3 = createEditor( { name: 'editor-name-three', onNamespaceLoaded: spy } );
 
 		return Promise.all( [
-			promise1,
-			promise2
+			waitForEditors( [ editor1, editor2, editor3 ] )
 		] ).then( () => {
-			expect( promise1 ).to.equal( promise2 );
+			expect( spy.calledOnce ).to.be.equal( true );
 		} );
 	} );
 
-	it( 'rejects with error when script cannot be loaded', () => {
-		return getEditorNamespace( 'non-existent.js' ).catch( err => {
-			expect( err ).to.be.instanceOf( Error );
+	it( 'after resolve allows to change CKEDITOR namespace', () => {
+		const language = 'custom';
+		const editor = createEditor( { name: 'editor-name', onNamespaceLoaded: namespace => {
+			namespace.config.lang = language;
+		} } );
+
+		waitForEditor( editor ).then( () => {
+			expect( CKEDITOR.config.lang ).to.be.equal( language );
 		} );
 	} );
 } );